Densification of aerated powders using positive pressure

Details Densification of aerated powders using positive pressure Densification of aerated powders using positive pressure

2006-10-03

2006-10-03

Huynh, Khoa D. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Processes

With material treatment

C141S009000, C141S073000, C141S080000

Reexamination Certificate

active

07114533

ABSTRACT:
A process for increasing the bulk density of an aerated powder is provided. The powder is placed in a container. The container is then closed and the gas pressure within the container is increased to a level above atmospheric pressure and at a rate sufficient to cause the powder to compact before a substantial portion of said pressurization gas diffuses into said powder. In one embodiment, the process is utilized to increase the bulk density of an aerated, free-flowing titanium dioxide pigment. Apparatus for carrying out the process is also provided.

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